#top_header{width: 100%; height: 30px; position: absolute;  /*  background-color: yellow; */}
#body_header{width: 100%; height: 120px; margin-top: 30px; position: absolute;   /* background-color: green; */}
#bottom_header{width: 100%; height: 50px; margin-top: 150px; position: absolute;   /* background-color: blue; */}

/* 上部_头部 */

#top_header ul{ float: left; margin-top: 10px;}
#top_header ul li{float: left; list-style: none; margin-right: 40px; color: #828282; font-weight: bold;}
#top_header select{float: right; margin-top: 10px; background-color: #828282; color: #DCDCDC;}

#top_header ul li:nth-child(1){color: #FFFFFF;}

#top_header ul li:hover{color: #FFFFFF; font-weight: bold;cursor: pointer;}

/* 中部_头部 */

#body_header img{margin-top: 50px;}

input[type=text]{margin-left:100px;margin-top: 60px;position: absolute; width: 500px;height: 27px; background-color: #363636; border-top-left-radius: 8px; border-bottom-left-radius: 8px; color: #828282; font-size: initial;}
input[type=submit]{position: absolute;margin-top: 60.3px;margin-left: 600px; border: solid #FF9900; border-top-right-radius: 8px; border-bottom-right-radius: 8px; background-color:  #FF9900;width: 100px;height: 31.4px; color: #101010; font-size: 19px; font-weight: bold; cursor: pointer;}

/* 下部_头部 */

#bottom_header div{float: left; margin-top: 5px; margin-left: 40px; margin-right: 30px; width: 120px; height: 40px; position: relative; border: solid #101010;}
#bottom_header div a{display: block;position:relative ;margin-top: 8px; margin-left: 40px; text-decoration: none;}
#bottom_header div:nth-child(1){border-bottom-color :#FF9900;}
#bottom_header div :hover{color: #FFFFFF; cursor: pointer;}
